Oh no, I was just making an assumption. Sorry, I haven't touched Yes-5 yet because I'm SUPER slow on Futari wa. Though, I could be wrong about the assumption.
I based it off of the amount of characters / amount of episodes = amount of character development. I usually feel that the more main characters there are, the more certain characters will have more character development over another. And if there's less main characters, there will be shitload of character development for the main characters, and some important side character to balance it off.
The only time I feel this to be off in my assumption was Suite. Despite the fact that I love it so much because it's a music-based series, I felt that even though they got Hibiki, Kanade, Seiren/Ellen, and Ako, they've focused so much more on Hibiki and Kanade, with Ako catching up, and Seiren/Ellen being a comedy relief (sometimes with Hummy) most of the time. The only time Seiren/Ellen had decent character development was her time as part of Minor Land (first half of the series).
I based my assumption that 4 main characters = equal character development on HeartCatch because they focused on some people who would end up becoming Precures in the future (Itsuki, and then Yuri when she regains her powers) before they became Precures. Especially Yuri, who fought even without her powers to an extent.
So in Smile, if I start watching it before Yes-5, it'll be my first x > 4 (a number greater than 4, in this case, a 5-character series) Precure series.
Get to suite 
